lab notes for 5/22:

1. log on
2. run netscape, look at 110 web page
3. basic usage: files on eniac accounts available as E:
                need to log into eniac account to compile and run from unix
                shell prompt.
4. to log into eniac account:
      Programs -> Network Software -> SecureCRT SSH Client
      click on eniac.seas.upenn.edu, hit OK
      enter username and password
3. run setup:
    information on this is available under the development tools page.
    run: "/html/courses/cse110/setup-cse110" from your shell prompt
4. use emacs to create the program hello.c
   two ways to do this:  
      (1) run "emacs" from the shell prompt
      (2) Programs -> Word Processing & Editors -> Emacs 20.3.1
   (2) is the nicer way to do it, but (1) might be useful for working from home
    C-x C-f hello.c
-----------------------
#include <stdio.h>

void main()
{
  printf("Hello world.\n");
}
-----------------------
   C-x C-s o save

5. go back to the SecureCRT window, and type "compile hello.c" from 
the prompt.  Then type "a.out" - it should say "Hello World".

6. to exit from Emacs - C-x C-c